With LCD screen design, this board can excellently protect your kids eyes. The characteristic of one-click clear desktop and delete can prevent works from being deleted by mistake and is convenient to use. Its waterproof and durable feature make it is practical and can be used for a long time. The buckle design that makes this writing pen is not easy to fall and can be easily stored. Made of high quality plastic material, it is sturdy and fall-resistant. There are 3 sizes for your choose. This writing board is suitable for home, school and can be used a perfect gifts to your kids. Item Name: Writing Board Material: Plastic Battery: 1 x CR2016 Button Battery(Included) Features: Multiple Function, Convenient, Buckle Design Colors: Black, Rose Red, Red, Pink, Blue, Light Blue, Light Pink Size Details: 4.4 Inch: 12cm x 9cm x 0.5cm/4.72" x 3.54" x 0.2" (Approx.) 6.5 Inch: 17cm x 11cm x 0.5cm/6.69" x 4.33" x 0.2" (Approx.) 8.5 Inch: 22.5cm x 13.7cm x 0.5cm/8.86" x 5.39" x 0.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Writing Board 1 x Writing Pen